Chabashira Sae

Biodata

Background / History

Chabashira Sae serves as the homeroom teacher for Class D and teaches Japanese history at Advanced Nurturing High School, holding a position where teachers do not change from year to year 2. On the first day of school, she introduces the freshmen to the school's point-based evaluation system, distributing 100,000 points to each student while deliberately omitting warnings about how reckless spending would impact their class standing 2 12. Initially hoping that this year's Class D might retain more points than previous batches, she is left stunned when the class squanders all their points within the first month due to widespread tardiness, absences, and classroom disruptions 2 12.

As the year progresses, Chabashira harbors a deep, almost paranoid obsession with pushing Class D up to Class A, driven by her own past regrets 15 41. She attempts to manipulate and guide key students like Hoshino Kanade, Ayanokoji Kiyona, and Horikita Suzune to act as an engine for the class 15 18 19. However, her withholding of critical updates—such as failing to inform her students about sudden changes to the midterm exam scope—leads directly to academic disaster and the expulsion of Sudo Ken, which strips Class D of its points and reduces their monthly total to zero 28 29. Later, she oversees the transition to the uninhabited island survival special exam, managing base camps, point budgets, and mandatory student watches 49 50.

Appearance

Chabashira Sae projects a reliable, professional appearance and appears to be just over thirty years old 2.

• Professional high ponytail tied at the back of her head 2.
• Wears a standard business suit 2.
• Expression is habitually weary, stern, and indifferent 15 28.

Personality

Chabashira Sae is a stern, mysterious, and disciplined educator who maintains an exterior of absolute authority 15 28. While she possesses professional composure capable of reading out disastrous class results without emotion, she also harbors a hidden, intense ambition to see Class D reach Class A 12 15. She is prone to withholding vital information to test her students' initiative, though her opaque guidance frequently frustrates the class 12 27. Behind her cold exterior lies a deep-seated frustration regarding her students' apathy and the failures of past years 18 28.

Relationships

• Hoshinomiya Chie — Close friend since high school and rival homeroom teacher for Class B; they frequently address each other as "Little Sae" and "Little Chie" 15.
• Hoshino Kanade — Student in Class D; Sae attempts to observe and indirectly motivate him, though he remains indifferent to her goals 18 28.
• Ayanokoji Kiyona — Student in Class D; Sae recognizes her hidden manipulative capabilities and precise control over her academic scores 18.
• Horikita Suzune — Student in Class D; Sae implicitly expects her to utilize her talents and lead the class toward Class A 17 19.
• Sudo Ken — Student in Class D whom Sae ultimately expels following his failure to clear the adjusted English threshold on the midterm exams 28.